Celldex Therapeutics, Inc. (CLDX) Stock

Celldex Therapeutics, Inc. (CLDX) is a Healthcare stock trading at $36.89 (as of 2026-09-11), with a market capitalization of $2.90B. Figures are sourced from first-party U.S. SEC EDGAR filings and market data.

Celldex Therapeutics, Inc. is a biopharmaceutical company developing therapeutic monoclonal and bispecific antibodies for inflammatory diseases and cancer. Its clinical programs include CDX-0159 (KIT-targeted monoclonal antibody), CDX-1140 (CD40 agonist antibody), and CDX-527 (bispecific antibody combining PD-L1/PD-1 pathway blockade with CD27 costimulation), intended for treating patients.

Understand Celldex Therapeutics, Inc.: how it makes money

Celldex develops monoclonal and bispecific antibody therapeutics targeting inflammatory diseases and cancer, and currently has no commercial product generating meaningful revenue. The entire equity is a binary option on a handful of early-stage pipeline candidates, so clinical trial milestones are the sole driver of shareholder value.

There is no profit engine today; 100% of equity value is option value on two antibody candidates (CDX-0159, CDX-1140) surviving the clinic and reaching a partner or label.

Business quality (Unprofitable): Pre-revenue biotech with no commercial product; the business is a clinical-stage R&D vehicle funded entirely by equity or license money, not by sales.

Bull case

  • Pipeline is the entire thesis: Celldex has CDX-0159, a Phase I anti-KIT antibody, and CDX-1140, a CD40 agonist, both targeting large unmet needs in oncology and immunology. A positive efficacy readout in either program would fundamentally re-rate the stock from a cash-burn vehicle to a late-clinical asset.

Bear case

  • Cash burn with no offset: The operating margin stands at -366,468%, a figure that reflects essentially zero revenue against a full load of R&D and G&A spend. Every additional quarter before a viable data readout extends the dilution cycle for existing shareholders.
  • Binary risk with no floor: With no commercial revenue and no reported P/E to anchor valuation, the stock has no fundamental floor. If CDX-0159 or CDX-1140 fails in the clinic, there is no ongoing business to fall back on, and equity value can collapse rapidly.
Valuation — source: SEC EDGAR (first-party)
Price$36.89
Market Cap$2.90B
Price / Book4.05
Price / Sales18451.94
FCF Yield-8.4%
Profitability & Growth — source: SEC EDGAR
Revenue (TTM)$1.54M
Net Margin-16748.0%
Return on Equity-42.1%
Current Ratio11.82
Revenue Growth (YoY)-97.0%
EPS Growth (YoY)10.6%
FCF Growth (YoY)35.4%
Financial Health — source: SEC EDGAR
Altman Z-Score21.41 (safe)
Valuation vs Sector & Industry
Sector P/E (Healthcare)19.4
Industry P/E (Pharmaceutical Products)15.1
Smart-Money Activity — SEC Form 4 / 13F / Congressional disclosures
Top Institutional HolderWELLINGTON MANAGEMENT GROUP LLP ($355.12M)
Institutional Holders Tracked10
Company
SectorHealthcare
IndustryPharmaceutical Products
CEOAnthony S. Marucci
Employees186
CountryUS
IPO Date1986-05-15

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CLDX earnings history · CLDX institutional & insider holders · CLDX KPIs & operating metrics · CLDX financials · CLDX filings, presentations & press releases · CLDX investor presentations & press releases · CLDX SEC filings · CLDX peers · Congress trades · Insider trades · Short interest · Stock screener

Data as of 2026-09-11.

Figures sourced from U.S. Securities and Exchange Commission (SEC EDGAR) filings and market data. Not personalized investment advice.